Q. A 35-year-old woman presents to your primary care clinic with complaints of high fever, chills, and severe pain in her right flank that has persisted for the past 48 hours. She also reports frequent and painful urination. His temperature is 102.5°F (39.2°C), pulse is 98 beats per minute, blood pressure is 130/80 mmHg, and respiratory rate is 14 per minute. On physical examination, there is costovertebral angle tenderness on the right side, and her abdomen is tender on palpation. Urinalysis shows plenty of pus cells and few red blood cells. What is the most appropriate next step in the management of this patient?